baber/WOPTO huggingface dataset:
Patent DE-2042189-A1 (DE)
Title: Solution for passivating zinc surfaces such - as galvanised iron and steel
Inventor: JOHN HARVEY GRAHAME
IPC: C23C22/30
Filed: 1970-08-25
Abstract: The solution comprises chromic acid in which a part of the Cr6+ ions have been replaced by or reduced to Cr3+, also contain a soluble chromate, dichromate, hydroxide or carbonate of Na, K, Ca, Mg or Zn to control the pH of the aqueous solution to 2.9-3.8. In treating the Zn surfaces the solution as above may be used alone or the surface may be pre-, or post-treated with an aqueous alkaline solution, the surface not being allowed to dry between the two treatments. 5-40% of the Cr may be in the Cr3+ state in the solution.
Patent DE-2050149-A1 (DE)
Title: Flash removal - by series of rotary holders and cutting unit programmed to trim moulded containers
IPC: B29C49/74
Filed: 1970-10-13
Abstract: A moulded soft polyethylene container is held in a rotary holder by clamps at the neck so that, in a programmed sequence, the holder is rotated in the cutting zone for excess material to be trimmed from the neck without damaging the moulded thread on the neck for the fitting of a screw top. After trimming, the holder is brought to a standstill and the clamps open to release the finished workpiece, and allow another to be inserted.
Patent DE-2119336-A1 (DE)
Title: Castable solid propellants - contg polymeric nitrate esters in soln of polyurethane components and liq nitrate ester
IPC: C06B45/10
Filed: 1971-04-21
Abstract: Castable composite double base solid propellants, e.g. for rocket boosters, are prepd. by slurrying polymeric nitrate esters in a soln. consisting of polyurethane components and monomeric liq. nitrate esters, working solid components, e.g. oxygenated salts and Al powder, into dispersion, casting propellant after addn. of hardener and hardening at raised temps. A pref. compsn. contains NH4ClO4 of 210 mu m and NH4ClO4 of 25 mu m av. grain-size, Al powder (10 mu m), OH-contg. polyester, hexanetriol, 4,4'-methylene-bis-(2-Cl-aniline), 3-isocyanatomethyl-3,5,5'-trimethyl-cyclohexyl-isocyanate, polyvinyl nitrate, nitroglycerol, stabilisers, wetting agents, catalyst.
Patent DE-2125697-A1 (DE)
Title: Textile width treatment - using pressure rollers to hold the material taught and smooth out folds
IPC: B65H23/34
Filed: 1971-05-25
Abstract: Textile width edges are processed by a processing station positioned in the direction of textile movement between a brake roller and a drawing roller of a conveyer arrangement, as well as by an apparatus which compensates for excess length by holding the material taut and hence smoothing out folds and undulations. The compensating mechanism comprises two separate sprung pressure rollers which are pref. positioned outside the material track and which only grip over part of the textile width and are individually adjustable. Other pressure rollers are located in the direction of textile movement behind a textile width holder to guide the material. This enables an individual adjustment to be made.
Patent DE-2141458-A1 (DE)
Title: Gas mixing appts - partic for protective gas mixtures used in welding
Inventor: EISENMANN ERNST
IPC: C10L3/00
Filed: 1971-08-18
Abstract: In an appts. for mixing of gas components under pressure, e.g. for the supply of mixed protective gases during welding, having supply pipes for each component and a gas mixing pipe, in which each supply pipe is connected to the mixing pipe via a reciprocating piston/cylinder assembly for feeding the relevant gas component, the pistons of such reciprocating assemblies are interconnected.
Patent DE-2144858-A1 (DE)
Title: Liquid casting resins - used as impregnating and casting agents for plastic insulators of electrical appliances
Inventor: HETZER WRNER DIPL-ING
IPC: H01B13/30
Filed: 1971-09-03
Abstract: Agent for impregnating and casting plastic insulations of electrical appliances, esp. cables and cable fitting, consists of a casting resin liquid in all operating conditions of the electrical goods, pref. basic substances used in prepn. of hardenable casting resins, more pref. epoxide, polyurethane or silicone resins, free from hardener, or coumarone resins, in highly fluid to viscous condition. Impregnating agents are compatible with all standard plastics.
Patent DE-2147740-A1 (DE)
Title: Continuous alcohol prodn by olefin hydration - using macroporous sulphonated styrene /divnylbenzene copolymer catalyst
Inventor: BRANDES GUENTER DIPL CHEM DR
IPC: C07C29/04
Filed: 1971-09-24
Abstract: Low alcohols, esp. isopropanol, are produced by catalytic hydration of lower olefins, esp. propene, in the presence of a strongly acid cation-exchange resin comprising a macroporous sulphonated styrene/divinylbenzene copolymer with an ave pore diam. of 50-250 pref. 100-200, angstroms pref. in a trickle column in which the liquid or gaseous reactants are passed downwards through a fixed bed of the catalyst at 120-180 degrees C/60-200 atm. with a cross-sectional loading of the reaction tube of 1-40, pref. 5-25 moles of H2O per cm2 per hr. the molar ratio of H2O to olefin being 1-30:1, pref. 10-20:1. The pore vol. is pref. =0.3 ml/ml of resin. The height of the catalyst bed is pref. 6-10 m. The reaction temp. is pref. increased so as to maintain an output above a given minimum value during the useful life of the catalyst, the initial reaction temp. pref. being 130-140 degress C. Better space/time yields and a longer catalyst life are achieved.
Patent DE-2155705-A1 (DE)
Title: Bearings - with one element elastically deformed - in operation
Inventor: LAING GEB MELCHIOR INGEBORG
IPC: F16C17/12
Filed: 1971-11-09
Abstract: The bearings, which can be plane, concave or convex have one fixed and one moving element, of which one has grooves in the rotating direction to produce hydrodynamic press. The thickness of >=1 element is so small that it undergoes elastic deformation through the action of the other element in operational conditions. This deformation is greater than any variation arising from tolerances and/or thermal expansion. Suitable materials are electroplatings of Au or corrosion-resistant base metal with embedded WC or similar hard substance.
Patent DE-2166923-A1 (DE)
Title: Tool head - for selective mounting of thread cutting rolls shavers or cutting tools
IPC: B23G5/12
Filed: 1971-08-12
Abstract: The solderless process does not damage the can decoration, utilizing tongues or flaps pressed in each of the overlapping edges and wedging together to be finally sealed using a thermoplastic. Pairs of parallel slits normal to the joints and centrally diverging are cut in mating faces, and the metal between the slits is slightly pressed in towards the can interior and the two faces then pressed together. Alternatively semi-circular flaps are cut in each mating surface to cantilever away from the joint edge and are respectively pressed towards and away from the can interior so that they finally slot together. The thermoplastic seal is pressure injected into the joint length at its fusion temperature.
Patent DE-2221054-A1 (DE)
Title: Heat exchanging appts - with potential generated by a chemical reaction
Inventor: DONNELLY WILLIAM R
IPC: C09K5/18
Filed: 1972-04-28
Abstract: Incompatible materials are contained in an appts. sepd. by a third which forms a buffer layer between them. The appts. is activated by addn. of a suitable agent which initiates the reaction producing the desired heat flow . If the reacting layers are (NH2)2CO and a mixt. of NH4SO3NH2, sepd. by an NH4Cl layer and water is the activating liq., a cooling effect results, with temps. in the region of -15.6 degrees C.
Patent DE-2225568-A1 (DE)
Title: Purificn of exhaust gases - using nickel copper on carrier of low surface area to remove no
Inventor: KEARBY KENNETH K
IPC: B01D53/94
Filed: 1972-05-26
Abstract: The catalyst for reduction of NO content of exhaust gases from ic. engines consists of 40-95 wt. % Ni and 5-60 wt. % Cu on a refractory carrier of surface area 5m2/g max. The carrier is pref. alumina with surface area of 0.1-2 m2/g and the active constituents pref. comprise 5-20 wt. % of the total catalyst. Under net rich fuel conditions, the NO is efficiently removed at high flow rates and the catalysts resist high temps. without sintering and loss of efficiency.
Patent DE-2229014-A1 (DE)
Title: Cyano-methyl-halomethyl,cyano-and halobenzene derivs - - selective herbicides
IPC: C07C205/12
Filed: 1972-06-14
Abstract: Novel title cpds have formula: (where A = CR5R6Z or Z, B = CR7R8Z or Z, Z = CN or halo, R5, R6, R7, R8 = H or CH3, and R1, R2, R3, R4 = H, 1-7C alkyl, NO2 or halo with the conditions (a) =2 of R1, R2, R3, R4 = NO2, (b) =2 of R1, R2, R3, R4 = halo, (c) >=1 of R1, R2, R3, R4 = H or halo, (d) >=1 of R1, R2, R3, R4 = 2-7C alkyl, (e) 2 nitro gps are not ortho to each other, (f) 2 alkyl gps are not ortho to each other, (g) each alkyl gp. has =3C in a straight chain starting from the point of attachment to the ring (h) when Z = hal, R5, R6, R7 R8 = H, (i) when A and B are both Z, Z = CN, (j) when A = -CR5R6Z and B = -CR7R8Z and A and B are in posns 1,4 then R2 and R4 = H, and >=1 of R1 and R3 = 4-7C alkyl, (k), when A and B are both Z and meta to each other then R1, R2 and R4 = H and R2 is not = tert-butyl).
Patent DE-2236364-A1 (DE)
Title: Highly brominated 4,4'-difluorodiphenyls - with good thermal stability
Inventor: JENKNER HERBERT DIPL CHEM DR
IPC: C07C25/18
Filed: 1972-07-25
Abstract: Title cpds. of formula (I): (where n = 7 or 8), are useful as heating fluids, dielectrics, flame-retardants for plastics and textiles, insecticides and pesticides. They are stable at =300 degrees C, soluble in aromatic (halo)hydrocarbons and aliphatic (halo)hydrocarbons, and easily prepd. in high purity cf. similar prior art cpds. Prepn. is by reaction of (I; n = 0) with excess Br2 at 0-200 degrees C in presence of a solvent and catalyst (pref. Fe).
Patent DE-2242061-A1 (DE)
Title: Automatically replacing centrifuge drums - using overhead slewing arms to handle drums between feed point, centrifuge and discharge point
Inventor: OPPERMANN HORST
IPC: B04B11/00
Filed: 1972-08-26
Abstract: The removable centrifuge drums are conveyed from their feeding station to the centrifuge and removed from it, after centrifuging, to their discharging station. They are conveyed by one or more horizontally slewing arms (pref. two arms at 180 degrees rotating about the top of a vertical column), each of which has grabbing arms to hold a drum; these arms slew over the feeding station, centrifuge and discharge station; the drums tilt or open when discharging.
Patent DE-2259388-A1 (DE)
Title: Isolation of vincristine from vinca rosa l - in improved yields
Inventor: JOVANOVICS GEB NAGY KAROLINA
IPC: C07D519/04
Filed: 1972-12-05
Abstract: Title cpd. (I) useful as an antileukemia agent is prepd. by oxidising vinblastine with chromic acid at a low temp. sepg. the mixt. including N-dimethyl vinblastine (II) formylating (II) and sepg. (I), esp. by chromatography.
Patent DE-2259783-A1 (DE)
Title: Impregnated support for printed circuits - comprising preimpregnated paper which is dried and impregnated with soln of phenolic resin and halogenated epoxy resin
Inventor: SIEPMANN M THEODOR DR
IPC: B32B27/10
Filed: 1972-12-06
Abstract: Non-combustible layered matls. possessing high electrical props., esp. for printed circuits, are prepd. by, pre-impregnating a conventional support, such as paper, with a soln. of a melamine resin (esp. modified melamine resin) in a conventional solvent, drying and then impregnating with a soln. of plasticised phenolic resins and halogenated pref. brominated epoxy resins in a conventional soln. mixt.; conventional accelerators, such as benzyl dimethyl amine and flame-inhibiting matls. may be added to the resin soln.; after impregnation, the matl. is pressed and heated.
Patent DE-2311038-A1 (DE)
Title: 2,5-Diaminophenol inorganic salts prodn. - by catalytically hydrogenating 2-amino-5-nitro-phenol in anhydrous medium and pptg. with inorganic acid
Inventor: NUSSBERGER GUSTAV A DR
IPC: C07C213/02
Filed: 1973-03-06
Abstract: Addn. salts of 2,5-diaminophenol (I) with inorg. acids are prepd. in high yields and purity by (a) treating 2-amino-5-nitrophenol with hydrogen in the presence of a metallic hydrogenation catalyst (pref. Raney- or Ruppe-nickel) in anhydrous or almost anhydrous conditions, (b) freeing the reaction mixt. from catalyst, (c) treating with an inorg. acid (pref. concd. sulphuric acid) and (d) isolating the resulting acid addn. salt of (I). (I) is useful as an inter, e.g. for oxazoles, oxazines and other heterocyclic cpds., as well as for 5-hydroxy-4,7-phenanthroline cpds. which are pharmacologically active (esp. as central stimulants).
Patent DE-2332052-A1 (DE)
Title: Toothed rubber belt for driving perforated paper tape - in office machines has injection-moulded cam-like protrusions on the side away from the cogs
Inventor: ROEHNER GERHARD
IPC: B29D29/08
Filed: 1973-06-23
Abstract: In mfr. of a toothed belt of rubber or elastic synth. material e.g. silicon rubber, PVC, polyurethane, polyamide, esp. for driving and conveying punched paper tape in office machines etc. with cam-like protrusions on that side remote from the cogs, which engage with the perforations of the paper tape, the protrusions are formed integrally with the body of the belt during the injection moulding of same. Simple single-step prodn. results in sturdy construction of the belt which avoids prior-art perforations and similar weakening sites in same.
Patent DE-2334396-A1 (DE)
Title: Equipment for filling valve sacks - goods in container pressurised by compressed air against discharging paddle wheel
Inventor: SCHWAKE PAUL
IPC: B65B1/18
Filed: 1973-07-06
Abstract: Equipment for filling valve sacks with weighed powdery or granular goods includes a container for the filled goods with goods discharging rotating paddle wheel at its bottom end and with its top end adjoining storage hopper. The hopper outlet in the container is enclosed by a cone valve activated by compressed air cylinder and the container is connected to source of compressed air by which its enclosure and goods filled in the enclosure through the hopper outlet are pressurised. With the cone valve of the hopper outlet closed, the compressed air presses the goods against the paddle wheel and thereby ensuring uniform flow of goods from the container, more accurate weighing of discharged goods and shorter filling time.
Patent DE-2335611-A1 (DE)
Title: Vehicle interior recessed interior light - has plastic insert contg. switch and bulb contact within lamp housing
Inventor: RAFALZIK SIEGFRIED
IPC: B60Q3/02
Filed: 1973-07-13
Abstract: The lamp switch is of plastic and formed in one piece with its pivot axle pushed into a corresp. boring in the insert. The switch axis movement is arrested by a "U" shaped leaf spring which fits around the insert like a clamp so that one leg presses against the insert and the other presses the switch towards the insert, the free end of the leg acting as the bulb plus centre contact. The switch pivot extends through one side on the insert and is secured by a spring whose lower end is pushed into a 'T' shaped groove in the insert and top end passes through the 'T' shaped groove to grip behind the body-work.
Patent DE-2336087-A1 (DE)
Title: Keyboard and digital store for tuning radio receivers - has multi cathode glow discharge lamps as digital stores associated with push-buttons of channel selectors
Inventor: HENZE WERNER
IPC: H03J5/02
Filed: 1973-07-16
Abstract: The keyboard has a digital store assigned to each push-button serving a given radio receiver channel. Each store consists of a glow discharge lamp having a common anode, common starting electrodes and several cathodes. Each cathode forms a separate binary cell with the anode and stores a given binary level, e.g. on or off. Each cathode is connected to a digital/analog converter whose output acts as the tuning voltage applied to the radio receiver tuning circuit. Operating a given push-button activates that push-button store whose output is then converted into the appropriate tuning voltage. Using a digital store avoids inaccuracies in the tuning setting which may occur with analog stores.
Patent DE-2339924-A1 (DE)
Title: One piece leather overalls for racing motor cyclists - has at the back of the waist a corrugated flexible section
Inventor: HARR ERNST
IPC: A41D13/02
Filed: 1973-08-07
Abstract: The flexible waist section at the back is formed for the one piece overalls by stitching corrugated leather or artificial leather to a flat piece of stretch fabric. The flat highly elastic lining is stitched to the outside corrugated leather. The stitches are made into the troughs of the corrugations. Hollow chambers are formed between the elastic fabrics and the corrugations in the leather. These hollow spaces are filled with profiled rods during stitching in order to maintain the leather in corrugated condition. This corrugated material is used for allowing freedom of movement at the waist and similar combinations of leather and stretch fabric can be used at elbows and knees.
Patent DE-2340165-A1 (DE)
Title: Fastener of orthodontal loops to teeth - has flexible positioning mould to transfer loops from cast to teeth
Inventor: COHEN MORTON
IPC: A61C7/12
Filed: 1973-08-08
Abstract: Fastener of loops of teeth, for jaw therapy, has a bite cast of a person, loops for temporary attachment to selected locations of the teeth of the cast and a positioning mould of resiliently flexible material, for fitting connection to the bite-cast teeth and the loops applies there, for removal together with the loops from the teeth of the cast and fitting engagement to the teeth of the person, for selective arrangement of the loops endwise on the person's teeth. Adhesive connects the loops and these teeth, so that the mould can be removed from the teeth leaving the loops in position on them. Time required is reduced, and precision is increased.
Patent DE-2342996-A1 (DE)
Title: Electric odometer for vehicles for position determination - is calibrated digitally by two step switches and preset counter
Inventor: HOEFT MICHAEL
IPC: G01C22/02
Filed: 1973-08-25
Abstract: The odometer reading accuracy can be changed by a decimal place; ill defined counting pulses are avoided by insertion of monostable flip-flops before the operating stages. A holed disc is rotated from works attached to the tachometer wave. The disc modulates the light beam from a light cabinet. Electrical impulses are produced of a quantity directly proportional to the travelled distances. To create a sensible display range the number of impulses is so multiplied that a metrical result is possible. This change is produced by an electronic converter consisting essentially of a non-stable multivibrator and two exchange stages with which a chosen number from nought to ninety-nine can be set, two decimal counters and two comparators producing an output signal.
Patent DE-2352401-A1 (DE)
Title: Pulse transformer residual oscillations suppression circuit - has several transistors in parallel with one transformer winding
Inventor: HUML FRANZ DR-ING
IPC: H03K5/01
Filed: 1973-10-18
Abstract: The transistor is made conducting during pauses between pulses. The transistor is a FET which is blocked during the duration of the pulses, whose gate is at approx. the source potential during pauses between pulses. Blocking pulses are applied to the FET gate through a capacitor or a transformer and an oscillator is operated during pulse duration with a period which is short in comparison with the pulse width. The output of this oscillator is supplied to the primary winding of a transformer, whose secondary winding is connected through a rectifier to the gate of the FET.
Patent DE-2353039-A1 (DE)
Title: Magnetic field angular aspect meter - has a pickup in the form of a probe for the geomagnetic field
Inventor: ROGGE JOACHIM DR-ING
IPC: H03M1/00
Filed: 1973-10-23
Abstract: The pickup output signals have components whose amplitudes vary as the sine or cosine of the position angle. Two RC bridges form signals whose phases slide in opposite senses. An evaluation device determines the position angle from the phase angles after the signals frequency division. A filter for interference signals is provided before the evaluation device, and a switching circuit between the filter and RC bridges directs as required one of the signals with sliding phase to the above filter. Signals for the switching circuit operation are generated by a flip-flop in the evaluation device. Start and a stop signals are derived for a counter operation from the first and second signal with the sliding phase respectively. A timing element delays the stop signal by an even multiple of the sliding phase signal period.
Patent DE-2354770-A1 (DE)
Title: Twin cylinder reciprocating pump for concrete - has piston rods attached to endless chain running over rollers
Inventor: SCHELLENBERG GERD WOLFGANG
IPC: F04B15/02
Filed: 1973-11-02
Abstract: The pump has two cylinders. Each contains a double flange piston head which pumps the concrete and a double flanged lower piston which is subjected to the hydraulic pressure of the driving fluid. The pistons in each cylinder are fixed to a common piston rod so that the hydraulic fluid pressure acts directly on the concrete being pumped. The piston rods are taken through the bottoms of the cylinders and their ends are attached to an endless chain which runs over rollers. The chain transmits the motion of one piston to the other so that as one cylinder is discharging the other is filling. The chain tension can be adjusted by movement of the rollers.
Patent DE-2359462-A1 (DE)
Title: Resistant lining for steel tanks - with wires laid in inner polymer weld lines for testing
Inventor: NEUHAEUSER HANS
IPC: B29D23/00
Filed: 1973-11-29
Abstract: Steel tanks are lined by first applying a continuous layer of rubber 1-6mm thick and cementing on to the rubber polyolefin films 0.5-4 mm thick (pref. 1-2 mm), the joints of the films being at an angle so as to produce wedge-shaped continuations with the apexes on the rubber side; metal wire 0.05-0.5 mm dia. and resistant to the tank contents is introduced into each apex, all the wires are connected together to form a closed network with a suitable point convenient for earthing, finally the wedge-shaped continuations are welded. Impure acids can be stored in the lined tank, the lining of which can be readily tested.
Patent DE-2362668-A1 (DE)
Title: Twisting tool for two conductor ends - uses jaw-like spring tensioned clamp rotated by electrical motor combined into hand tool
Inventor: MUENZBERGER KLAUS
IPC: H01R43/00
Filed: 1973-12-17
Abstract: The tool for twisting of two conductor ends is characterised in that the crossed bars conductor ends are held by a jaw like clamp under spring tension, and that this clamp with the gripped conductor ends is set in relative quick rotation for a definite and controlled time by an automatic drive. The drive may be a small electric motor in a handy housing, the axis of which is connected for rotation with the spring clamp. The switching-on of the electric motor is obtained by depressing a spring tensioned switch lever operating on the switch.
Patent DE-2402880-A1 (DE)
Title: Electronic circuit for signal standardisation - has AND circuit to whose inputs timing signals and signal to be standardised are applied
Inventor: LOTZ ALFRED
IPC: H03K5/05
Filed: 1974-01-18
Abstract: The two signals are the signal to be standardised, and a timing signal; this circuit output is connected to the inputs of a first and second OR circuits, whose outputs are connected to the inputs of a second AND circuit. Its output delivering the standardised output signal is connected to the second input of the first OR circuit, and the negated timing signal is connected to the second input of the second OR circuit. The circuit consists of faultless logic units, whose inputs and outputs operate with a.c. signals through input and output transformers, whose windings at the logic unit inputs are connected by one end to the d.c. supply voltage. A dynamic input signal is applied to their other ends.